package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class JDBCLogin {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        try (Connection connection = DBUtil.getConnection();){
            System.out.println("请输入用户名：");
            String username=scanner.nextLine();
            System.out.println("密码：");
            String password=scanner.nextLine();
            Statement statement1 = connection.createStatement();
            String aql="SELECT nickname FROM userinfo WHERE " +
                    "username='"+username+"'AND password='"+password+"'";
            ResultSet r=statement1.executeQuery(aql);
            if (r.next()){
                String nickname=r.getString("nickname");
                System.out.println("登录成功，欢迎您:"+nickname);
            }else {
                System.out.println("用户名或密码错误");
            }


        }catch (SQLException e){
            throw new RuntimeException(e);
        }
    }
}
